BUFFALO 

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Trunk  Sewer. 


SPECI  FICATIONS 

FOR  FURNISHING 

SEWER  BRICK,  AMERICAN  HYDRAULIC 
CEMENT,  PORTLAND  CEMENT 
AND  IRON  castings. 


ISSUED  FOR  THE  GUIDANCE  OF  BIDDERS,’ AND  AS 

A  BASIS  OF  CON'l'RACT, 


THE  BOARD  OF  SEWER  COMMISSIONERS. 

Buffalo,  N.  Y.,  January  24,  1883. 


BUFFALO: 

THE  COURIER  COMPANY,  PRINTERS, 

IQ7  Main  Street. 

1883. 


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The  foUowing  specifications,  etc.,  are  issued  as  the  official  an¬ 
nouncement  of  the  Board  of  Sewer  Commissioners  of  the  City  of 
Buffalo  of  the  terms  and  conditions  on  which  material  for  the  Trunk 
Sewer  will  be  contracted  for. 

For  the  Board  of  Sewer  Commissioners, 

D.  C.  BEARD,  President. 

Buffalo,  N.  Y.,  January  24,  1883. 


BUFFALO  TRUNK  SEWER. 

General  cofiditions  attaching  to  all  specifications  for  the  supply  of  mate- 
rial  for^  and  for  the  execution  of  work  upon^  the  construction  of  the 
Trunk  Sewer  and  its  appurtenances.,  or  any  part  thereof. 

1.  Wherever  the  words  “the  Engineer”  appear  in  the  specifica¬ 
tions,  they  shall  be  taken  to  mean,  in  all  cases,  the  Consulting  Engi¬ 
neer  of  the  work,  or  any  subordinate  engineer  in  charge  of  the  part 
of  the  work  or  supply  referred  to.  In  case  of  dispute  or  doubt  be¬ 
tween  the  contractor  and  the  subordinate  engineer,  reference  may 
be  made  by  either  party  to  the  Consulting  Engineer,  whose  decision 
shall  be,  in  all  cases,  final. 

2.  Wherever  the  words  “  as  indicated  ”  appear  in  the  specifica¬ 
tions,  they  shall  be  taken  to  mean,  in  the  manner  described  in  the 

^  specifications,  or  shown  in  the  drawings ;  or  in  accordance  with  the 
general  tenor  or  intent  of  either  or  both  of  them,  or  with  proper  and 
reasonable  deductions  therefrom;  or  according  to  the  decision  thereon 
of  “the  Engineer,”  as  explained  in  the  foregoing  paragraph  (i). 


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5 


BUFFALO  TRUNK  SEWER. 

To  Bidders. 

Conditions  of  proposals  for  furnishing  not  more  than  : 

20,000,000  Sewer  Brick. 

50,000  barrels  of  American  Hydraulic  Cement. 

10,000  barrels  of  Portland  Cement. 

100,000  pounds  of  Iron  Castings. 

Estimates  for  furnishing  this  material  will  be  received  by  the 
Board  of  Sewer  Commissioners  of  the  City  of  Buffalo,  at  the  rooms 
of  the  Park  Commissioners  in  the  City  Hall,  Buffalo,  N.  Y.,  until  12 
o’clock,  M.,  on  Wednesday,  the  fourteenth  day  of  February,  1883,  at 
which  time  and  place  the  bids  will  be  publicly  opened  and  read. 
The  award  of  contract,  if  awarded,  will  be  made  as  soon  as  practi¬ 
cable  after  the  opening  of  the  bids. 

Any  person  making  an  estimate  for  the  supply  shall  furnish  the 
same  in  a  sealed  envelope  to  said  Board,  at  said  office,  on  or  before 
the  day  and  hour  above  named,  which  envelope  shall  be  indorsed 
with  the  name  or  names  of  the  person  or  persons  presenting  the 
same,  the  date  of  its  presentation  and  a  statement  of  the  material  to 
which  it  relates. 

The  bidder  to  whom  the  award  is  made  shall  give  security  for  the 
faithful  performance  of  the  contract,  in  the  manner  prescribed  and 
required  herein,  in  a  sum  equal  per  cent.  of  the  total 

amount  of  his  bid. 

The  following  are  the  provisions  of  the  act  of  legislature  under 
which  the  Trunk  Sewer  is  to  be  constructed  so  far  as  they  relate  to 
this  subject.  It  is  entitled 

An  Act  to  create  a  Board  of  Commissioners  of  Sewers  of  the 

City  of  Buffalo,  to  define  their  powers  and  duties,  and  to  provide 

means  for  the  construction  and  maintenance  of  certain  sewers  in 

the  City  of  Buffalo.  Passed  June  8,  1882. 

“  Said  Commissioners  shall  advertise  for  proposals  for  construct¬ 
ing  said  sewers  and  tunnel,  and  furnishing  material  for  the  same, 
under  one  entire  contract,  or  in  parts  or  sections  under  several  con- 


6 


tracts,  as  they  shall  deem  for  the  best  interests  of  the  city,  for  a 
period  of  not  less  than  ten  days,  in  the  official  paper  and  in  at  least 
one  newspaper  printed  in  Boston,  New  York,  Cleveland,  Cincinnati, 
Chicago  and  St.  Louis.  The  said  Commissioners  shall  require  a  bond 
of  each  person  who  shall  submit  proposals,  in  such  amount  and  with 
such  sureties  as  they  shall  determine,  to  be  submitted  with  such  pro¬ 
posals,  conditioned  that  the  persons  or  person  making  such  proposals 
shall  enter  into  a  contract  for  furnishing  the  labor  and  materials  for 
and  constructing  such  sewers  and  tunnel,  or  the  portion  thereof  for 
which  such  proposals  are  asked  and  submitted,  according  to  the 
plans  and  specifications,  at  his  proposal  or  bid,  and  that  he  will  fur¬ 
nish  such  security  as  said  Board  shall  require  to  be  furnished  for  the 
faithful  performance  of  his  or  their  contract. 

“And  said  Commissioners  shall  require  any  person  or  persons  with 
whom  they  shall  contract  for  doing  said  work  or  furnishing  said  ma¬ 
terials,  or  any  part  thereof,  to  give  sufficient  security,  to  be  approved 
by  them,  for  the  faithful  performance  of  such  contract  or  contracts. 
Said  Commissioners  may  reject  any  and  all  proposals  and  bids  which 
may  be  made  to  them,  and  may  contract  with  other  than  the  lowest 
bidder  for  such  materials  and  work,  or  any  part  thereof,  and  may 
re-advertise  for  the  same.  Said  Commissioners  are  hereby  author¬ 
ized  to  expend  a  sufficient  amount  of  money  to  perform  all  the  duties 
imposed  upon  them  by  this  act." 

The  whole  amount  of  the  different  materials  to  be  furnished  must 
conform,  in  every  respect,  to  the  specifications  therefor  which  are 
attached  hereto. 

The  form,  provisions  and  requirements  to  be  complied  with  by  the 
contractor  are  set  forth  in  the  blank  form  of  contract  for  the  supply 
of  material. 

Bidders  will  state  in  their  proposals  the  price  for  each  thousand 
of  brick,  or  barrel  of  cement,  or  pound  of  iron  castings  to  be  fur¬ 
nished  in  conformity  with  the  specifications.  By  this  price  the  bids 
Avill  be  tested.  This  price  is  to  cover  all  expenses  of  every  kind 
involved  in  or  incidental  to  the  delivery,  including  any  claim  that 
may  arise  through  delay,  from  any  cause,  in  the  receiving  of  the 
material  by  the  Board  of  Sewer  Commissioners. 

Bidders  will  distinctly  write  out,  both  in  figures  and  in  words,  the 
amounts  of  their  proposals  for  furnishing  this  material. 

Should  the  accepted  bidder  or  bidders  neglect  or  refuse  to  accept 
the  contract  within  forty-eight  (48)  hours  after  written  notice  that  the 


7 


same  has  been  awarded  to  his  or  their  bid  or  estimate,  or  if,  after 
acceptance,  he  or  they  should  refuse  or  neglect  to  execute  the  con¬ 
tract  and  give  the  proper  security  for  forty-eight  (48)  hours  after 
notice  that  the  contract  is  ready  for  execution,  he  or  they  will  be 
considered  as  having  abandoned  it,  and  as  in  default  to  the  City  of 
Buffalo,  and  the  contract  may  be  let  to  another  bidder. 

Bidders  are  required  to  state  in  their  proposals  their  names  and 
places  of  residence  ;  the  names  of  all  persons  interested  with  them 
therein;  and  if  no  other  person  be  so  interested,  the  proposal  shall 
distinctly  state  that  fact;  also  that  the  proposal  is  made  without  any 
connection  with  any  other  person  making  a  proposal  for  the  same 
material,  and  that  it  is,  in  all  respects,  fair  and  without  collusion  or 
fraud ;  and  also  that  no  member  of  the  Common  Council,  head  of  a 
department,  chief  of  a  bureau,  deputy  thereof,  or  clerk  therein,  or 
other  officer  of  the  corporation,  or  officer  of  the  Board  of  Sewer 
Commissioners  is  directly  or  indirectly  interested  therein,  or  in  the 
supplies  to  which  it  relates,  or  in  any  portion  of  the  profits  thereof ; 
which  proposal  must  be  verified  by  the  oath,  in  writing,  of  the 
party  making  the  proposal,  that  the  several  matters  stated  therein 
are  in  all  respects  true.  Where  more  than  one  person  is  interested,  it  is 
requisite  that  the  verification  be  made  and  subscribed  by  all  the  parties 
interested. 

Each  bid  shall  be  accompanied  by  the  consent,  in  writing,  of  two 
householders  or  freeholders  of  the  State  of  New  York,  v/ith  their 
respective  places  of  business  or  residence,  to  the  effect  that  if  the 
contract  be  awarded  to  the  person  or  persons  making  the  bid,  they 
will,  upon  its  being  so  awarded,  become  bound  as  his  or  their  sure¬ 
ties  for  its  faithful  performance;  and  that,  if  the  said  person  or 
persons  shall  omit  or  refuse  to  execute  the  contract,  they  will  pay  to 
the  City  of  Buffalo  any  difference  between  the  sum  to  which  he  or 
they  would  be  entitled  on  its  completion  and  that  which  the  City  of 
Buffalo  may  be  obliged  to  pay  to  any  bidder  to  whom  this  contract 
may  be  awarded  at  any  subsequent  letting.  'I'he  consent  above 
mentioned  shall  be  accompanied  by  the  oath  or  affirmation,  in  writ¬ 
ing,  of  the  persons  signing  the  same  that  each  is  a  householder  or 
freeholder  of  the  State  of  New  York,  and  is  worth  the  amount  of  the 
security  required  for  the  above  work  over  and  above  all  his  debts  of 
every  nature,  and  over  and  above  his  liabilities  as  bail.,  surety  or  other¬ 
wise  ;  and  that  he  has  offered  himself  as  surety  in  good  faith  and 
with  the  intention  to  execute  the  bond  required  by  law. 


8 


The  adequacy  and  sufficiency  of  the  security  offered  is  to  be  de¬ 
termined  by  the  Board  of  Sewer  Commissioners  after  the  award  is 
made  and  prior  to  the  signing  of  the  contract. 

Bidders  are  informed  that  no  deviation  from  the  specifications  will 
be  allowed  unless  under  the  written  instructions  of  the  Engineer. 

No  bid  will  be  accepted  from  or  contract  awarded  to  any  person 
who  is  in  arrears  to  the  City  of  Buffalo,  upon  debt  or  contract,  or 
who  is  a  defaulter  as  surety  or  otherwise,  upon  any  obligation  due  the 
said  city. 

The  right  is  reserved  to  decline  all  bids,  and  to  award  the  contract 
to  other  than  the  lowest  bidder. 

Only  so  much  material  of  any  kind  will  be  taken  as  shall  be 
needed  for  the  work. 

A  copy  of  the  specifications,  including  the  terms  and  manner  of 
payment,  is  annexed. 

Bidders  are  requested,  in  making  their  bids  or  estimates,  to  use  the 
blank  prepared  for  that  purpose  by  the  Board  of  Sewer  Commission¬ 
ers,  a  copy  of  which,  together  with  the  form  of  the  agreement, 
and  the  specifications  showing  the  manner  of  payment  for  the 
material,  can  be  obtained  upon  application  therefor  at  the  office  of 
the  Park  Commissioners. 

D.  C.  BEARD, 

JACOB  SCHEU, 

MICHAEL  NELLANY,  ' 
GEO.  B.  MATHEWS, 

GEO.  GORHAM, 

Dated  January  24,  1883.  Commissioners. 


9 


BUFFALO  TRUNK  SEWER. 

Specifications  for  Brick. 

All  bricks^  furnished  to  be  of  the  best  quality  of  sewer  brick,  true 
and  uniform  in  shape,  burned  hard  entirely  through,  and  having  a 
clear  ring  when  struck.  They  must  be  of  the  reg.ilar  size  and 
proportions  of  sewer  bricks,  not  less  than  7^  inches  long,  3^  inches 
wide,  and  inches  thick. 

The  Contractor  must  furnish  the  necessary  facilities  for  inspection, 
in  the  City  of  Buffalo,  and  must  furnish  convenient  storage,  in  an 
inclosure  to  be  used  for  no  other  purpose,  for  the  storage  of  all  brick 
inspected  not  needed  for  immediate  delivery  on  the  work. 

The  final  acceptance  of  brick  furnished  will  be  by  inspection 
when  delivered  on  the  work,  and  the  fact  that  bricks  have  passed  an 
inspection  at  the  yard  shall  not  be  taken  as  a  reason  for  their 
acceptance,  if  not  satisfactory  to  the  Inspector  in  charge  of  the 
work.  No  bricks,  however,  which  have  been  rejected  at  the  first 
inspection  shall,  at  any  time  or  under  any  pretext,  be  sent  to  the 
work.  All  storage  and  all  handling  and  rehandling  for  inspection 
and  for  storage,  and  all  transportation  as  well  as  all  breakage  up  to 
the  time  of  final  delivery  and  acceptance,  shall  be  at  the  sole  cost 
and  charge  of  the  Contractor.  No  bats  or  broken  bricks  delivered 
on  the  work  will  be  counted  as  accepted. 

The  bids  must  state  the  price  per  thousand  for  the  amount  bid 
for,  made  and  inspected  as  above,  delivered  in  good  condition  as 
indicated,  at  such  times,  in  such  quantities  and  at  such  points  on  the 
work  as  the  Engineer  shall  direct,  at  any  time  between  April  15, 
1883,  or  such  later  day  as  may  be  fixed  by  notification  as  hereinafter 
provided,  and  the  time  of  the  completion  of  the  Trunk  Sewer  and 
its  appurtenances. 

The  bids  must  state  the  quantity  that  each  bidder  will  agree  to 
furnish,  not  exceeding  20,000,000  bricks. 

Payments  will  be  made  monthly  by  warrants  on  the  City  Treasury 
(Trunk  Sewer  Fund),  on  the  receipts  of  the  contractor  as  a  gauge 
of  quantity,  and  the  acceptance  of  the  Engineer  or  Inspector  on  the 
work  indorsed  thereon  as  a  certificate  of  quality. 

The  quantities  to  be  furnished  by  different  bidders  will  be  allotted 
in  such  a  manner  as  to  exhaust  first  the  full  amount  of  the  lowest  bid 


lO 


accepted;  then  the  next  lowest;  and  so  on,  until  the  whole  amount 
required  is  allotted. 

The  lowest  accepted  bidder  will  be  required  to  furnish  the  full 
amount  of  his  contract  first,  in  order  of  time,  then  the  next  lowest, 
and  so  on.  Each  bidder  after  the  first  will  receive  sixty  (6o)  days 
notification  of  the  time  when  he  will  be  required  to  begin  his  supply. 

Twenty  per  cent.  (20%)  of  the  total  amount  due  on  each  estimate 
will  be  held  back  until  the  total  amount  so  retained  shall  amount  to 
ten  per  cent.  (10%)  of  the  whole  amount  to  be  paid  to  the  Contractor 
on  all  the  bricks  he  shall  have  agreed  to  furnish  under  the  allotment 
on  his  bid. 

The  money  so  retained  will  be  paid  when  the  full  quantity  agreed 
to  be  furnished  (or  the  full  quantity  required  if  the  whole  amount 
agreed  for  is  not  required)  has  been  delivered,  and  accepted  by  the 
Engineer. 


BUFFALO  TRUNK  SEWER. 


Specifications  for  American  Hydraulic  Cement. 

All  cement  of  this  class  must  be  of  the  best  quality  of  Rosendale, 
or  other  of  equal  quality,  fine  ground,  quick  setting,  capable,  when 
made  into  testing  blocks,  of  withstanding  a  tension  of  fifty  pounds 
per  square  inch  of  section  when  mixed  pure  and  exposed  thirty 
minutes  in  air  and  twenty-four  hours  in  water. 

All  cement  furnished  by  the  Contractor  will  be  subject  to  inspection 
and  test  before  it  is  accepted,  and  if  found  of  improper  quality  must 
be  immediately  removed  from  the  work. 

The  Contractor  will  be  required  to  furnish  the  Engineer  or 
Inspector  full  facilities  for  examining  and  testing  all  cement,  in  the 
City  of  Buffalo. 

Should  cement  have  to  be  stored,  or  not  immediately  used  after 
acceptance,  or  at  any  time,  it  must  be  protected  from  the  weather  and 
kept  dry,  and  must  never  be  placed  upon  the  ground  without  blocking 
under  the  barrels.  It  may  be  subjected  to  a  second  test  at  any  time 
before  its  delivery  to  the  Contractor,  if  the  Engineer  so  direct. 

No  cement  furnished,  which  may  be  defective  or  deficient  in  any 
of  the  requirements  of  these  specifications,  is  to  be  considered  as 
accepted  in  consequence  of  any  negligence  of  any  Engineer  or 
other  authorized  person  to  point  out  such  defect  or  deficiency 
during  the  execution  of  this  contract,  and  the  contractor  will  be 
required  to  replace  any  inferior  cement  whenever  discovered. 

The  bids  must  state  the  price  per  barrel  for  the  amount  bid  for, 
delivered  dry  and  in  good  condition  as  tested,  and  in  sound,  tight 
barrels,  at  such  times,  in  such  quantities,  and  at  such  points  on  the 
work  as  the  Engineer  shall  direct,  at  any  time  between  April  15,  1883, 
or  such  later  day  as  may  be  fixed  by  notification  as  hereinafter 
provided,  and  the  time  of  the  completion  of  the  Trunk  Sewer  and 
its  appurtenances.  The  bids  must  state  the  quantity  that  each 
bidder  will  agree  to  furnish,  not  exceeding  50,000  barrels. 

The  quantities  to  be  furnished  by  different  bidders  will  be  allotted 
in  such  a  manner  as  to  exhaust  first  the  full  amount  of  the  lowest 
bid  accepted ;  then  the  next  lowest,  and  so  on,  until  the  whole 
amount  is  allotted. 

The  lowest  accepted  bidder  will  be  required  to  furnish  the  full 
amount  of  his  contract  first,  in  order  of  time,  then  the  next  lowest. 


I  2 

and  so  on.  Each  bidder  after  the  first  will  receive  sixty  (6o)  days 
notification  of  the  time  when  he  will  be  required  to  begin  his  supply. 

Payments  will  be  made  by  warrants  on  the  City  Treasury  (Trunk 
Sewer  Fund),  on  the  receipts  of  the  Contractor  as  a  gauge  of  quantity, 
and  the  acceptance  of  the  Engineer  or  Inspector  on  the  work, 
indorsed  thereon,  as  a  certificate  of  quality. 

Twenty  per  cent.  (20%)  of  the  total  amount  due  on  each  estimate 
will  be  held  back  until  the  total  amount  so  retained  shall  amount  to 
ten  per  cent.  (10%)  of  the  whole  amount  to  be  paid  to  the  contractor 
on  all  American  Hydraulic  Cement  he  shall  have  agreed  to  furnish 
under  the  allotment  on  his  bid. 

The  money  so  retained  will  be  paid  when  the  full  quantity  agreed 
to  be  furnished  (or  the  full  quantity  required  if  the  whole  amount 
agreed  for  is  not  required)  has  been  delivered,  and  accepted  by 
the  Engineer. 


<1 


BUFFALO  TRUNK  SEWER. 


Specification  for  Portland  Cement. 

All  cement  of  this  class  must  be  of  the  best  quality  and  must  be 
ground  so  fine  that  at  least  ninety  (90)  per  centum  of  it  will  pass 
through  a  wire  sieve  containing  2,500  meshes  to  the  square  inch. 

The  cement  when  made  into  a  stiff  paste,  without  sand,  must  set 
within  half  an  hour  from  the  time  of  adding  the  water,  and  be 
capable  of  sustaining  without  rupture  a  tensile  strain  of  at  least  250 
pounds  per  square  inch,  seven  days  after  being  moulded. 

The  cement  when  mixed  with  sand  in  the  proportion,  by  volume, 
of  one  of  cement  to  two  of  sand,  and  made  into  a  stiff  mortar,  must 
be  capable  of  sustaining  without  rupture  a  tensile  strain  of  at  least 
90  pounds  per  square  inch,  seven  days  after  being  moulded. 

The  test  blocks  will,  in  all  cases,  be  removed  from  the  moulds 
as  soon  as  the  setting  begins  and  the  material  will  bear  it;  but 
they  will  not  be  put  into  fresh  water  before  the  expiration  of  twenty- 
four  hours  from  the  time  the  cement  was  mixed.  After  seven  days 
have  elapsed  from  the  time  the  blocks  were  moulded,  they  will  be 
taken  out  of  the  water  and  broken  by  a  proper  apparatus. 

The  sand  used  in  testing  the  cement  will  be  sharp,  siliceous  sand, 
free  from  loam,  dust,  mica  or  other  foreign  matter,  and  will  be 
gauged  between  two  sieves,  of  400  and  900  meshes  to  the  square 
inch. 

Cakes  of  the  paste  will  also  be  made,  about  one-half  inch  in 
thickness,  and  after  immersion  in  fresh  water  for  one  week,  their 
surfaces  must  show  no  sign  of  crack  or  softness. 

Each  barrel  of  cement  must  weigh  not  less  than  375  pounds  gross 
weight,  and  on  the  whole  quantity  to  be  delivered,  must  average  not 
less  than  400  pounds  gross  weight  to  the  barrel,  and  under  this 
contract,  400  pounds  gross  weight  will  be  considered  and  estimated 
as  one  barrel.  The  cement  must  also  weigh  not  less  than  100 
pounds,  nor  more  than  125  pounds,  per  United  States  struck  bushel, 
when  filled  from  a  hopper  placed  at  a  height  of  three  feet  above  the 
mouth  of  the  measure. 

Each  barrel  must  be  properly  lined  so  as  to  effectually  seal  the 
cement  from  dampness. 

The  Contractor  shall  furnish  to  the  Engineer  such  information  as 
he  shall  desire  as  to  the  ingredients,  proportions  of  ingredients,  and 


14 


process  of  manufacture  used  in  making  the  cement  to  be  furnished 
under  this  contract,  in  order  to  enable  him  to  determine  whether  the 
cement  is  really  a  “  Portland  ”  cement  or  not. 

1  he  quantities  to  be  paid  for  shall  be  weighed  and  inspected 
by  the  Engineer,  or  by  the  person  or  persons  designated  for  the 
purpose  by  him,  in  accordance  with  these  specifications. 

All  cement  delivered  under  these  specifications  shall  be  subject  to 
the  inspection  and  rejection  of  the  Engineer,  or  of  the  agents 
authorized  to  act  under  him,  at  any  time  before  its  final  acceptance. 

No  cement  furnished  which  may  be  defective  or  deficient  in  any 
of  the  requirements  of  these  specifications  is  to  be  considered  as 
accepted,  in  consequence  of  any  neglect  of  any  Engineer  or 
other  authorized  person  to  point  out  such  defect  or  deficiency 
during  the  execution  of  this  contract,  and  the  Contractor  will  be 
required  to  replace  any  inferior  cement  when  discovered. 

The  Contractor  will  be  required  to  furnish  the  Engineer  or 
Inspector  every  facility  for  the  examination  and  testing  of  the  cement, 
in  the  City  of  Buffalo. 

Should  cement  have  to  be  stored,  or  not  immediatelv  used  after 
acceptance,  or  at  any  time,  it  must  be  protected  from  the  weather  and 
kept  dry,  and  must  never  be  placed  upon  the  ground  without  block¬ 
ing  under  the  barrels.  It  may  be  subjected  to  a  second  test  at  any 
time  before  its  delivery  to  the  Contractor,  if  the  Engineer  so 
direct. 

The  bids  must  state  the  price  pe7'  barrel^  for  the  amount  bid  for, 
delivered  dry  and  in  good  condition,  as  tested,  and  in  sound, 
properly  lined,  tight  barrels,  at  such  times,  in  such  quantities  and  at 
such  points  on  the  work  as  the  Engineer  shall  direct  at  any  time, 
between  May  i,  1883,  or  such  later  day  as  may  be  fixed  by  notifica¬ 
tion  as  hereinafter  provided,  and  the  time  of  the  completion  of  the 
Trunk  Sewer  and  its  appurtenances.  The  bids  must  state  the  quan¬ 
tity  that  each  bidder  will  agree  to  furnish,  not  exceeding  ten  thousand 
(10,000)  barrels. 

The  quantities  to  be  furnished  by  different  bidders  will  be  allotted 
in  such  a  manner  as  to  exhaust  first  the  full  amount  of  the  lowest 
bid  accepted ;  then  the  next  lowest,  and  so  on,  until  the  whole 
amount  is  allotted. 

The  lowest  accepted  bidder  will  be  required  to  furnish  the  full 
amount  of  his  contract  first,  in  order  of  time,  then  the  next  lowest, 
and  so  on.  Each  bidder,  after  the  first,  will  receive  sixty  (60)  days 


15 


notification  of  the  time  when  he  will  be  required  to  begin  his 
supply. 

Payments  will  be  made  by  warrants  on  the  City  Treasury  (Trunk 
Sewer  Fund),  on  the  receipts  of  the  Contractor,  as  a  gauge  of 
quantity,  and  the  acceptance  of  the  Engineer  or  Inspector  on  the 
work,  indorsed  thereon,  as  a  certificate  of  quality.  Payments  will 
be  made  according  to  the  gross  weight  of  the  cement  delivered,  400 
pounds  gross  being  paid  for  as  one  barrel,  under  this  contract. 

Twenty  per  cent  (20  %)  of  the  total  amount  due  on  each  estimate 
will  be  held  back  until  the  total  amount  so  retained  shall  amount  to 
ten  per  cent.  (10  %)  of  the  total  amount  to  be  paid  to  the  Contractor 
on  all  Portland  cement  he  shall  have  agreed  to  furnish  under  the 
allotment  on  his  bid. 

The  money  so  retained  will  be  paid  when  the  full  quantity  agreed 
to  be  furnished  (or  the  full  quantity  required  if  the  whole  amount 
agreed  for  is  not  required)  has  been  delivered,  and  accepted  by  the 
Engineer. 


1/ 

BUFFALO  TRUNK  SEWER. 

Specifications  for  Iron  Castings. 

All  iron  must  be  of  the  best  quality,  and  the  castings  must  be  free 
from  all  defects  in  workmanship,  and  from  all  impurities. 

All  the  castings  must  be  sound,  true,  clean,  and  out  of  wind. 

The  quality  of  the  iron  must  be  tough  and  strong.  Such  a 
mixture  of  iron  must  be  used  as  will  secure  this  result. 

The  castings  must  be  sound  throughout,  free  from  air-bubbles, 
cold  shuts,  strains  of  cracks. 

Patterns  must  be  made  by  the  Contractor,  without  charge  therefor, 
from  the  drawings  furnished,  and  it  will  be  understood  that  the 
patterns  become  the  property  of  the  City  of  Buffalo. 

All  cast  iron  pieces  must  be  of  not  less  than  the  minimum  weight 
specified.  They  will  be  paid  for  on  the  specified  minimum  weight 
only. 

All  cast  iron  pieces  shall  be  subject  to  such  tests  for  weight,  size 
and  quality  as  the  Engineer  may  consider  proper,  and  facilities  will 
be  furnished  by  the  Contractor,  for  making  such  tests  in  the  City  of 
Buffalo. 

All  imperfect  cast  iron  pieces  shall  be  broken  up  on  the  spot,  at 
the  cost  of  the  Contractor,  when  condemned  by  the  Engineer. 

Upon  all  pieces  of  cast  iron  there  shall  be  cast  such  letters  and 
figures  as  may  be  shown  by  the  drawings,  without  extra  charge 
therefor. 

All  castings  to  be  delivered  on  the  work  where  wanted,  and  as 
ordered  by  the  Engineer,  or  at  any  time  between  June  i,  1883,  or 
such  later  day  as  may  be  fixed  by  notification  as  hereinafter  pro¬ 
vided,  and  the  time  of  the  completion  of  the  Trunk  Sewer  and  its 
appurtenances. 

The  bids  must  state  the  price  per  pound  for  each  item  of  the 
following  list :  * 

1.  Manhole  heads . minimum  weight,  450  lbs. 

2.  Manhole  covers .  “  “  150  “ 

3.  Two-foot  pipe  slants,  in  two 

sections .  “  “  2,500  “ 


'rhe  bids  must  state  the  quantity  that  each  bidder  will  agree  to 
furnish,  not  exceeding  the  following  schedule: 

I.  Manhole  heads . not  exceeding  45,000  lbs. 


2.  Manhole  covers .  “  “  15,000  “ 

3.  Two-foot  pipe  slants,  in  two 

sections .  “  “  40,000  “ 


The  quantities  to  be  furnished  by  different  bidders  will  be  allotted 
in  such  a  manner  as  to  exhaust  first  the  full  amount  of  the  lowest 
bid  accepted ;  then  the  next  lowest ;  and  so  on  until  the  whole 
amount  is  allotted. 

The  lowest  accepted  bidder  will  be  required  to  furnish  the  full 
amount  of  his  contract  first,  in  order  of  time,  then  the  next  lowest, 
and  so  on.  Each  bidder,  after  the  first,  will  receive  sixty  (60)  days’ 
notification  of  the  time  when  he  will  be  required  to  begin  his 
supply. 

Payments  will  be  made  by  warrants  on  the  City  Treasury  (Trunk 
Sewer  Fund),  on  the  receipts  of  the  Contractor,  as  a  gauge  of 
quantity,  and  the  acceptance  of  the  Engineer  or  Inspe<5tor  on  the 
work,  indorsed  thereon,  as  a  certificate  of  quality. 

Twenty  per  cent.  (20  %)  of  the  total  amount  due  on  each  estimate 
will  be  held  back  until  the  total  amount  so  retained  shall  amount  to 

t 

ten  per  cent.  (10%)  of  the  whole  amount  to  be  paid  to  the  Con¬ 
tractor,  on  all  iron  castings,  he  shall  have  agreed  to  furnish  under 
the  allotment  on  his  bid. 

The  money  so  retained  will  be  paid  when  the  full  quantity  agreed 
to  be  furnished  (or  the  full  quantity  required  if  the  whole  amount 
agreed  for  is  not  required)  has  been  delivered,  and  accepted  by  the 
Engineer. 


